Mitsubishi Electric MELSEC iQ-R Series, Programming Manual

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13 SFC PROGRAM INSTRUCTIONS
13.1 SFC Control Instructions
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13
Setting data
■
Description, range, data type
■
Applicable devices
Processing details
• These instructions check whether the specified block is active or not.
• The status (on or off) of each contact will be as follows depending on the status (active or inactive) of the specified block.
• Specify the block No. within the range of 0 to 319. If the block No. specified is out of range, both of the normally open
contact and normally closed contact turn off.
• Execute the instruction only when an SFC program exists (SM320 is on) and SM321 is on.
Precautions
• When no SFC program exists (SM320 is off) or SM321 is off, the status (on or off) of the contact will be as follows:
Operation error
There is no operation error.
Operand Description Range Data type Data type (label)
(s) Device used as a contact

Bit ANY_BOOL
Operand Bit Word Double word Indirect
specification
Constant Others
(BL
 )
X, Y, M, L,
SM, F, B, S,
SB, FX, FY J  \  T, ST, C, D, W,
SD, SW, FD, R,
ZR, RD U  \G  , J  \  ,
U3E  \(H)G 
Z LT, LST,
LC LZ K, H E $
(s)
           
Status of the specified block Contact of the normally open contact
instruction Contact of the normally closed contact
instruction
Active On Off
Inactive Off On
Specified block No. Contact of the normally open contact
instruction Contact of the normally closed contact
instruction
0 to 319 Off On
Less than 0, 320 or more (out of range) Off Off